Unicode Character "ー" U+FF70 Halfwidth Katakana-Hiragana Prolonged Sound Mark
Unicode Version 15.1
ー
Summary
The unicode character "ー" at code point U+FF70 is Halfwidth Katakana-Hiragana Prolonged Sound Mark. It is a character in the Halfwidth and Fullwidth Forms block and is part of the Common script. The character is a modifier letter. The UTF-8 encoding of "ー" is 0xEF 0xBD 0xB0 and the UTF-16 encoding is 0xFF70.
General Properties
| Code Point | U+FF70 |
| Version Added | 1.1 |
| Name | Halfwidth Katakana-Hiragana Prolonged Sound Mark |
| Block | Halfwidth and Fullwidth Forms |
| General Category | Modifier Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Narrow |
| Decomposition Mapping | "ー" U+30FC Katakana-Hiragana Prolonged Sound Mark |
Encodings
| HTML Decimal Encoding | ー |
| HTML Hex Encoding | ー |
| UTF-8 Encoding | 0xEF 0xBD 0xB0 |
| UTF-16 Encoding | 0xFF70 |
| UTF-32 Encoding | 0x0000FF70 |
| C/C++/Java Escape | \uff70 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Conditional Japanese Starter |
| East Asian Width | Halfwidth |
| Case Ignorable | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ー" U+30FC Katakana-Hiragana Prolonged Sound Mark |
| NFKC Simple Casefold | "ー" U+30FC Katakana-Hiragana Prolonged Sound Mark |
| Script | Common |
| Script Extensions | Hiragana Katakana |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Diacritic | Yes |
| Extender | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Katakana |
| Sentence Break | OLetter |